A wireless device includes at least one slim radiating system having a slim radiating structure and a radio-frequency system. The slim radiating structure includes one or more booster bars. The booster bar has slim width and height factors that facilitate its integration within the wireless device and the excitation of a resonant mode in the ground plane layer, and has a location factor that enables it to achieve the most favorable radio-frequency performance for the available space to allocate the booster bar. The at least one slim radiating system may be configured to transmit and receive electromagnetic wave signals in one or more frequency regions of the electromagnetic spectrum.

A wireless device includes at least one slim radiating system having a slim radiating structure and a radio-frequency system. The slim radiating structure includes one or more booster bars. The booster bar has slim width and height factors that facilitate its integration within the wireless device and the excitation of a resonant mode in the ground plane layer, and has a location factor that enables it to achieve the most favorable radio-frequency performance for the available space to allocate the booster bar. The at least one slim radiating system may be configured to transmit and receive electromagnetic wave signals in one or more frequency regions of the electromagnetic spectrum.

It is an object of the present invention to provide compact and wideband antenna radiating elements based on multilayer substrate technologies which can be applied in lightweight radars. A wideband antenna radiating element disposed in a multilayer substrate comprises a plurality of parts and a coupled area linking the plurality of parts. Each of the plurality of parts comprises a signal via, ground vias surrounding the signal via, a radiation pad connected to one end of the signal via, a feed pad connected to another end of the signal vias, and an artificial medium disposed between the signal via and the ground vias. The multilayer substrate comprises a plurality of conductor layers isolated by a dielectric material.

It is an object of the present invention to provide compact and wideband antenna radiating elements based on multilayer substrate technologies which can be applied in lightweight radars. A wideband antenna radiating element disposed in a multilayer substrate comprises a plurality of parts and a coupled area linking the plurality of parts. Each of the plurality of parts comprises a signal via, ground vias surrounding the signal via, a radiation pad connected to one end of the signal via, a feed pad connected to another end of the signal vias, and an artificial medium disposed between the signal via and the ground vias. The multilayer substrate comprises a plurality of conductor layers isolated by a dielectric material.

An exemplary embodiment of an multiband antenna assembly includes a printed circuit board having a plurality of elements thereon. The plurality of elements may include a radiating element, a matching element, a feed element configured to be operable as a feeding point for the multiband antenna assembly, and a shorting element configured to be operable for electrically shorting the radiating element to ground. The antenna assembly may be operable within at least a first frequency range and a second frequency range different than the first frequency range without requiring any matching lump components coupled to the printed circuit board.

An exemplary embodiment of an multiband antenna assembly includes a printed circuit board having a plurality of elements thereon. The plurality of elements may include a radiating element, a matching element, a feed element configured to be operable as a feeding point for the multiband antenna assembly, and a shorting element configured to be operable for electrically shorting the radiating element to ground. The antenna assembly may be operable within at least a first frequency range and a second frequency range different than the first frequency range without requiring any matching lump components coupled to the printed circuit board.

An antenna apparatus includes a feeding terminal, a high-pass low-cut device, a first low-pass high-cut device, and an antenna body, where the high-pass low-cut device is electrically connected in series between a first free end of the antenna body and the feeding terminal, and the first low-pass high-cut device is electrically connected in series between a second free end of the antenna body and the feeding terminal.

An antenna apparatus includes a feeding terminal, a high-pass low-cut device, a first low-pass high-cut device, and an antenna body, where the high-pass low-cut device is electrically connected in series between a first free end of the antenna body and the feeding terminal, and the first low-pass high-cut device is electrically connected in series between a second free end of the antenna body and the feeding terminal.

A wireless device including a coil having loops, a first reception circuit, and a second reception circuit. The first reception circuit is configured to receive a signal of a first frequency band through a portion of the loops and the second reception circuit configured to inhibit the signal of the first frequency band through the loops.

A wireless device including a coil having loops, a first reception circuit, and a second reception circuit. The first reception circuit is configured to receive a signal of a first frequency band through a portion of the loops and the second reception circuit configured to inhibit the signal of the first frequency band through the loops.